About Us
About TestPrep Advice
By TestPrep Advice Editors · Updated November 6, 2026
Independent reviews and free guides for DAT, MCAT, OAT, LSAT, GRE, ATDH and REx-PN prep.
TestPrep Advice is an independent review site that helps students choose DAT, MCAT, OAT, LSAT and GRE prep without wasting money. We score every course on the same rubric, check prices and exam rules against official sources, and write free guides on scoring, test dates, registration and study plans. We started the site because most test prep reviews online repeat company marketing, contradict their own prices or never say how a course was judged.
What We Cover
We cover seven exams: the DAT, MCAT, OAT, LSAT and GRE, plus the ATDH for dental hygiene programs and the REx-PN for practical nurses. For the first five, we publish:
- Course reviews of the major prep companies, each with a score out of 10, pros and cons, and current prices.
- Head-to-head comparisons such as DAT Booster vs DAT Bootcamp and UWorld vs Blueprint MCAT.
- Best-of rankings for each exam, ordered by our editorial score.
- Free guides on scoring, sections, test dates, registration, fees and study schedules.
- Free tools, including an MCAT score calculator, an LSAT percentile calculator and a course matcher.
For the ATDH and the REx-PN, we publish free study guides: ATDH guides and REx-PN guides.
How We Review Courses
Every course is scored on the same five criteria, weighted equally: question bank quality, platform, value for money, content coverage and analytics. The overall score out of 10 is the average of the five. Free and low-cost options are ranked alongside paid courses when they're the better fit. The full rubric is on our methodology page.
How We Check Facts
Fees, test dates, retake rules and score scales come from the organizations that run each exam: the AAMC, ADA, LSAC and ETS. Course prices and guarantees come from each company's own site. We date these checks on the page and link to the source, so you can confirm them yourself. When a claim can't be verified, we leave it out.
Our Expert Reviewers
We're adding a credentialed expert reviewer for every exam we cover. Our DAT and OAT reviews, guides and rankings are reviewed by Dr. Sangam Sanghera, DDS, a practicing dentist who earned her Doctor of Dental Surgery from the NYU College of Dentistry in 2021 and now practices in Canada. Reviewers check facts, scoring, test rules and study advice; they don't set course scores or rankings. Meet our expert reviewers.
How We're Funded
TestPrep Advice is free to read. We plan to earn money through affiliate links, which pay us a commission when a reader buys a course through our link, at no extra cost to them. Commissions never change a score or a ranking. Our methodology page explains how we keep scores independent.
Corrections and Contact
If you spot an outdated price, a wrong date or anything else that needs fixing, contact us. We correct confirmed errors quickly and update the date on the page.